I agree, even with small birds it seems too small. This sounds like it may be able to be divided so that it can be turned into one or two nest boxes but it sounds quite small and narrow for being an entire coop. Could you place this box inside one of those Rubbermaid Sheds that you can buy at the hardware store? Or possibly build something around this unit so they can have areas for food, water, nesting and roosting?

We decided not to use it. We were trying to rig it for nesting boxes, inside of a coop DH made out of shipping pallets, but it's a few inches too wide. No biggie, really; we were just trying to be creative!